Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes.
Understanding African Trypanosomiasis (AT) host-pathogen interaction is the key to an "anti-disease vaccine", a novel strategy to control AT. Here we provide a better insight into this poorly described interaction by characterizing the activation of a panel of endothelial cells by bloodstr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS Pathogens |
| Online Access: | http://europepmc.org/articles/PMC3795030?pdf=render |
| _version_ | 1818528484976230400 |
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| author | Zeinab Ammar Nicolas Plazolles Théo Baltz Virginie Coustou |
| author_facet | Zeinab Ammar Nicolas Plazolles Théo Baltz Virginie Coustou |
| author_sort | Zeinab Ammar |
| collection | DOAJ |
| description | Understanding African Trypanosomiasis (AT) host-pathogen interaction is the key to an "anti-disease vaccine", a novel strategy to control AT. Here we provide a better insight into this poorly described interaction by characterizing the activation of a panel of endothelial cells by bloodstream forms of four African trypanosome species, known to interact with host endothelium. T. congolense, T. vivax, and T. b. gambiense activated the endothelial NF-κB pathway, but interestingly, not T. b. brucei. The parasitic TS (trans-sialidases) mediated this NF-κB activation, remarkably via their lectin-like domain and induced production of pro-inflammatory molecules not only in vitro but also in vivo, suggesting a considerable impact on pathogenesis. For the first time, TS activity was identified in T. b. gambiense BSF which distinguishes it from the subspecies T. b. brucei. The corresponding TS were characterized and shown to activate endothelial cells, suggesting that TS represent a common mediator of endothelium activation among trypanosome species with divergent physiopathologies. |
| first_indexed | 2024-12-11T06:50:23Z |
| format | Article |
| id | doaj.art-0eca5e0f3a5643d1839094fa445d0ae2 |
| institution | Directory Open Access Journal |
| issn | 1553-7366 1553-7374 |
| language | English |
| last_indexed | 2024-12-11T06:50:23Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Pathogens |
| spelling | doaj.art-0eca5e0f3a5643d1839094fa445d0ae22022-12-22T01:16:55ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742013-01-01910e100371010.1371/journal.ppat.1003710Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes.Zeinab AmmarNicolas PlazollesThéo BaltzVirginie CoustouUnderstanding African Trypanosomiasis (AT) host-pathogen interaction is the key to an "anti-disease vaccine", a novel strategy to control AT. Here we provide a better insight into this poorly described interaction by characterizing the activation of a panel of endothelial cells by bloodstream forms of four African trypanosome species, known to interact with host endothelium. T. congolense, T. vivax, and T. b. gambiense activated the endothelial NF-κB pathway, but interestingly, not T. b. brucei. The parasitic TS (trans-sialidases) mediated this NF-κB activation, remarkably via their lectin-like domain and induced production of pro-inflammatory molecules not only in vitro but also in vivo, suggesting a considerable impact on pathogenesis. For the first time, TS activity was identified in T. b. gambiense BSF which distinguishes it from the subspecies T. b. brucei. The corresponding TS were characterized and shown to activate endothelial cells, suggesting that TS represent a common mediator of endothelium activation among trypanosome species with divergent physiopathologies.http://europepmc.org/articles/PMC3795030?pdf=render |
| spellingShingle | Zeinab Ammar Nicolas Plazolles Théo Baltz Virginie Coustou Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes. PLoS Pathogens |
| title | Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes. |
| title_full | Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes. |
| title_fullStr | Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes. |
| title_full_unstemmed | Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes. |
| title_short | Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes. |
| title_sort | identification of trans sialidases as a common mediator of endothelial cell activation by african trypanosomes |
| url | http://europepmc.org/articles/PMC3795030?pdf=render |
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